@inproceedings{sgem2017s01014,
  title = {CONTENT AND TYPES OF VANADYL PORPHYRINS IN ASPHALTENES AND RESINS OF HEAVY OILS FROM VARIOUS PRODUCTIVE COMPLEXES},
  author = {Dmitry Milordov},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining},
  year = {2017},
  pages = {109-116},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2017/11/s01.014}
}